27 Best Window Replacement Companies in Windham, CT (2023 Reviews)
Window Companies Near Me
If you're thinking about upgrading to new windows, our guide to the best window installation companies can help.
We analyzed all the top window installers in Windham and selected the top 27 based on:
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Customer reviews
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Window replacement expertise
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Popularity with home-owners like you
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Updated March 14, 2023
Why you can trust EcoWatch
A guide on the top window replacement companies in Windham may not seem like the most captivating article on EcoWatch, but trust us, windows have a more direct impact on your life than you might realize. The Department of Energy estimates that heat or cool air lost through old or damaged windows could account for about 30% of heating and cooling costs. In Windham, where the energy bills are an average of $37 per month, that's almost $$132 per year wasted.
Luckily, helping you save money with upgraded windows also helps our goals of reducing energy usage for the environment.
So if you're constructing a new home, renovating or replacing your windows in Windham, this guide is the best place to get started.
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Award-winning company
- Member of US Green Building Council
- More expensive than competition
Best Affordability
Window World
- EnergyStar Partner
- Large serice area
- Low prices relative to competitors
- Quality of service will depend on your area
Best for Residential Windows
Window Nation
- Award-winning company
- Custom designs
- Manufactures products in-house
- Limited service area
Best Window Replacement Companies in Windham
The EcoWatch team researched dozens of installers in Windham to find the best window installation companies for our readers. The installers in this article passed our review standards for energy-efficient offerings as well as customer service, price, local expertise and beyond.

Renewal by Andersen
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Manufactures products in-house
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Award-winning company
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Member of US Green Building Council
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More expensive than competition
Renewal by Andersen offers the best availability in Windham. It's a subsidiary of the Andersen Corporation, a major manufacturer of windows and doors. Andersen has around 27 years of experience in the window replacement industry.
Andersen may be the company for you if you're looking for one that uses in-home estimates and advanced digital tools to help you plan and visualize your project before getting started.
Energy Efficiency of Renewal by Andersen WindowsA handful of windows manufactured by the Andersen corporation were awarded Energy Star’s “Most Efficient” in 2021, and Andersen was named Energy Star’s Partner of the Year in 2019. Not all of Andersen's offerings are Energy Star certified, so make sure you mention that you want Energy Star windows when inquiring.
How much does Renewal by Andersen cost in Windham?Prices aren't mentioned on Andersen's website, but based on customer feedback, you can expect to pay anywhere between $750 to $1,250 per window for an installation with Andersen. If you'd like to know for sure, you can get a quote on the company's website.

Window World
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EnergyStar Partner
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Large serice area
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Low prices relative to competitors
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Quality of service will depend on your area
Window World provides windows expertise in Windham. It's the largest window replacement company in the country, known for its vinyl windows and affordability. This company has 27 years of experience in the window installation business, and it has become one of the most respected companies in Windham. Many positive reviews on customer review websites back the provider's reputation.
It has established itself as a company that is certified by the Environmental Protection Agency (EPA) and Energy Star and supports charities like St. Jude Children’s Research Hospital.
Energy Efficiency of Window World WindowsWindow World offers some Energy Star windows, but note that not all its windows are energy-efficient, so make sure you mention that you want Energy Star windows when inquiring. Its high-performance Low-E (low-emissivity) coatings and argon gas insulation offer exceptional efficiency and performance for any home.
How much does Window World cost in Windham?Window World doesn't have any cost information displayed on its website, but it's known for offering some of the most affordable window installations around. You can ask for a free quote on its website for more information about pricing.

Window Nation
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Award-winning company
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Custom designs
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Manufactures products in-house
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Limited service area
Window Nation provides the best residential windows in Windham. It's a company that serves hundreds of thousands of homeowners, mostly in the mid-Atlantic region of the U.S. This provider has 16 years of experience in the windows business, and it has proved to be one of the most reputable companies in Windham. Its reputation is backed by several positive reviews on customer review websites.
It has established itself as a company that gives customers the opportunity to view products and to speak to a representative in person in its showrooms.
Energy Efficiency of Window Nation WindowsWindow Nation appeals to eco-conscious consumers by providing energy-efficient window offerings. Each product has windowpanes coated with a Low-E (low emissivity) glaze that prevents damaging UV rays from heating your home. Plus, the spaces between double- and triple-pane windows are filled with argon gas that’s been proven to improve home insulation.
How much does Window Nation cost in Windham?Window Nation does not outline prices on its website, but based on customer feedback, you can expect to pay between $300 and $525 per window installed, making it a more affordable option compared to competitors. If you'd like more accurate information, you can receive a quote on the company's website.

Aeroseal Windows
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Many years of experience
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Great industry reputation
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Low number of customer complaints
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Manufactures products in-house
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Custom Designs
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No lifetime warranty
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Not ideal for residential installations
Aeroseal Windows offers the best window installation for businesses in Windham. This window installation company has been in business since 1999 and currently serves 13 states and Washington D.C. Its reputation is backed by a considerable amount of positive reviews from customers online.
Aeroseal may be the company for you if you're interested in one that installs windows and doors at businesses across the Eastern U.S.
Energy Efficiency of Aeroseal Windows WindowsAeroseal Windows is an Energy Star partner with a variety of energy-efficient windows. Note that not all of the company's windows are Energy Star certified, so be sure to ask your Aeroseal representative when inquiring about services.
How much does Aeroseal Windows cost in Windham?Aeroseal doesn't have any cost information available on its website, but it provides high-quality windows at a competitive price point. You can inquire about a free quote on its website for more information about the cost.
We've recommended installers with shining reputations, but note that some national companies have independently owned locations in Windham, so your service may differ depending on your local crew. We have tried to be unbiased and transparent by including pros and cons for each company reviewed.
More Window Replacement Companies in Windham
Renewal by Andersen - Southern New England
Windsor Locks, CT-
No-Hassle Pricing
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Excellent Customer Service
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Reliable Appointment Windows
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Helps Educate Customers
Services Offered
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Residential Windows
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Custom Window Designs
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Commercial Windows
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Double-Hung
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Stained Glass
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Sliding Glass
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Bay Windows
Advanced Window Systems LLC
Cromwell, CT-
Consistent Workmanship
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Arrives on Time
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Price Transparency
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Free Quotes
Services Offered
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Glass Showers
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Energy-Efficient Options
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Custom Windows
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Double-Hung
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Sliding Glass
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Bay & Bow Windows
Mainville Windows & Doors
Newington, CT-
Educational Website
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Free Quotes
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No-Hassle Pricing
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Consistent Workmanship
Services Offered
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Residential Windows
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Custom Windows
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Aluminum Window Frames
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Commercial Windows
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Double-Hung
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Sliding Glass
Guaranteed Building Maintenance
Sturbridge, MA-
Educational Website
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Award-Winning
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Arrives on Time
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Excellent Customer Service
Services Offered
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Residential Windows
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Commercial Windows
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Sliding Glass
United Glass & Mirror Co
Bozrah, CT-
No-Hassle Pricing
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Locally Recognized for Quality
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Good Customer Service
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Helps Educate Customers
Services Offered
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Residential Windows
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Architectural Glass
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Glass Showers
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Heavy Glass
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Tempered Glass
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Doors
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Custom Windows
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Business Windows
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Sliding Glass
Window World of Hartford
Manchester, CT-
Good Customer Service
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No-fee Quotes
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Consistent Workmanship
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Helps Educate Customers
Services Offered
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Custom Windows
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Fast Delivery
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Sliding Glass
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Double-Hung
Mr. Handyman of Norwich, New London and Glastonbury
Norwich, CT-
Timely Service
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Educational Website
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Award-Winning
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No-fee Quotes
Services Offered
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Custom Window Designs
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Residential Windows
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Commercial Windows
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Double-Hung
Turner Home Improvement Contractors, LLC,
Glastonbury, CT-
Free Quotes
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Excellent Customer Service
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Price Transparency
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Consistent Workmanship
Services Offered
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Residential Windows
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Business Windows
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Full-Service Installations
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Custom Window Designs
Peter L Brown
Granby, CT-
Reliable Service
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Helps Educate Customers
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Good Customer Service
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Arrives on Time
Services Offered
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Energy-Efficient Options
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Custom Window Designs
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Aluminum Window Frames
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Double-Hung
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Sliding Glass
Capitol Glass Co Inc
West Hartford, CT-
No-Hassle Pricing
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Free Quotes
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Educational Website
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Good Customer Service
Services Offered
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Residential Windows
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Architectural Glass
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Doors
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Business Windows
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Sliding Glass
Thomas Garbati Builders, LLC
Waterford, CT-
Free Quotes
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Award-Winning
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Educational Website
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No-Hassle Pricing
Services Offered
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Custom Windows
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Residential Windows
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Double-Hung
Renewal by Andersen Windows Connecticut
Cromwell, CT-
Free Quotes
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Consistent Workmanship
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Good Customer Service
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Price Transparency
Services Offered
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Energy-Efficient Options
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Double-Hung
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Sliding Glass
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Bay Windows
Cussons Sash
Glastonbury, CT-
Educational Website
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Gives to charity
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Consistent Workmanship
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Excellent Customer Service
Services Offered
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Custom Windows
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Residential Windows
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Business Windows
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Sliding Glass
Fiderio & Sons
Meriden, CT-
No-Hassle Pricing
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Free Quotes
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Good Customer Service
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Helps Educate Customers
Services Offered
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Custom Windows
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Aluminum Window Frames
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Full-Service Installations
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Double-Hung
Major Home Improvements LLC - Roofing
Springfield, MA-
No-Hassle Pricing
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Dependable Service
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Educational Website
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Good Customer Service
Services Offered
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Custom Window Designs
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Residential Windows
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Aluminum Window Frames
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Double-Hung
Window Nation
Wallingford, CT-
No-fee Quotes
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Consistent Workmanship
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Excellent Customer Service
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Price Transparency
Services Offered
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Sliding Glass
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Custom Windows
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Energy-Efficient Options
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Double-Hung
Henderson Roofing
Westerly, RI-
Educational Website
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No-Hassle Pricing
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Excellent Customer Service
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No-fee Quotes
Services Offered
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Custom Window Designs
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Residential Windows
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Full-Service Installations
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Commercial Windows
Window Wizards
Pawcatuck, CT-
Free Quotes
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Excellent Customer Service
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Reliable Service
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Helps Educate Customers
Services Offered
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Custom Windows
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Residential Windows
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Business Windows
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Sliding Glass
The Siding Store, Inc
Plainfield, CT-
Good Customer Service
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Reliable Appointment Windows
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Consistent Workmanship
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Helps Educate Customers
Services Offered
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Custom Window Designs
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Residential Windows
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Energy-Efficient Options
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Sliding Glass
GA Siding, Windows & Roofing
Oxford, MA-
Reliable Service
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Reliable Appointment Windows
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Price Transparency
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Educational Website
Services Offered
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Custom Window Designs
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Residential Windows
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Business Windows
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Sliding Glass
AA Glass Inc
Bloomfield, CT-
Consistent Workmanship
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No-fee Quotes
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Helps Educate Customers
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Price Transparency
Services Offered
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Glass Showers
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Residential Windows
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Custom Windows
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Commercial Windows
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Sliding Glass
Handyman Services of CT LLC
Niantic, CT-
Excellent Customer Service
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Arrives on Time
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Educational Website
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Supports Charities
Services Offered
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Custom Windows
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Sliding Glass
Sturdy Home Improvement
Indian Orchard, MA-
Price Transparency
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Helps Educate Customers
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Good Customer Service
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No-fee Quotes
Services Offered
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Double-Hung
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Full-Service Installations
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Custom Windows
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Residential Windows
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Commercial Windows
Glass America
7+ years in business · Westerly, RI-
Consistent Workmanship
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Reliable Appointment Windows
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Helps Educate Customers
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Locally Recognized for Quality
Services Offered
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Custom Windows
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Business Windows
Lockheed Architectural Solutions, Inc.
Pascoag, RI-
No-Hassle Pricing
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Consistent Workmanship
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Helps Educate Customers
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Free Quotes
Services Offered
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Architectural Glass
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Doors
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Custom Windows
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Business Windows
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Double-Hung
Christopher Home Improvement
Norwich, CT-
Price Transparency
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Timely Service
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Educational Website
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Free Quotes
Services Offered
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Custom Window Designs
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Residential Windows
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Commercial Windows
New Horizon Home Improvement LLC
Wilbraham, MA-
Consistent Workmanship
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Educational Website
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Good Customer Service
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Free Quotes
Services Offered
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Custom Windows
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Aluminum Window Frames
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Commercial Windows
How Installing Energy-Efficient Windows in Windham Saves You Money
By switching to energy-efficient windows, you can benefit in several ways, such as:
- Save money on power bills: Because energy-efficient windows decrease how much energy you need to heat or cool your home, the switch can help you save around $457 annually on your energy bills in Windham.
- Protect your valuables from fading: When you switch to energy-efficient windows with low-emissivity coatings, your floors, carpets and furniture will be protected from fading because of their ability to filter out damaging UV rays.
- Decrease your carbon footprint: You can reduce your indirect greenhouse gas emissions by about 12% once you install Energy Star certified windows. In Windham, that's about 147 pounds per year on average.
- Protect your investment: If you have a relatively old home, your windows are most likely in need of replacement. Upgrading your windows can improve the insulation in your home and also help increase the value of your home if you decide to sell.
Estimated Cost of Window Replacement in Windham
Windows come in varying styles, shapes and purposes, so costs and services will vary remarkably based on several factors. Below, we detail the typical cost and services that you can get from window installation companies.
How Much Do New Windows Cost?
On average, Windham homeowners can expect their window replacements to range from $250 to $1,200. The average cost sits at about $600. But costs vary considerably based on the size of your home, complexity of the installation, your location and the quality of the company you choose. Many window installers also offer door installations, which will add extra costs to your project.
With windows, efficiency is one of the most important factors for most homeowners. Windows with higher efficiency may cost more off the bat, but by increasing the efficiency of your home — especially during the summer and winter — they can give you many years of energy savings. According to Energy Star, buying certified energy-efficient windows can save Windham homeowners $457+ per year after replacing single-pane windows.
Asking for free quotes from several providers is the best way to figure out which one is right for you.
What Services do Window Installers Offer?
The first step of a window installation is to decide whether you want a full-frame or pocket installation.
A full-frame installation is a total window replacement. This service involves removing the old window, the sill, and the exterior and interior trim. It also involves other materials, including insulation and drip edges, which increase the total cost of the project. It's also worth noting that it's not uncommon for homeowners to have to touch up the paint surrounding the window after a full-frame installation. A pocket installation entails installing a new window without replacing the frame. So, instead of removing the whole window and rebuilding it, the installer will just slide the replacement window (also called a retrofit or insert window) into the frame.
If you're not sure which kind of window installation service you should get, your installer can help you out. Generally, the decision is based on factors like the age and condition of the home, the type of building material, budget and time restrictions.
Best Overall
Renewal by Andersen
- Manufactures products in-house
- Award-winning company
- Member of US Green Building Council
- More expensive than competition
Best Affordability
Window World
- EnergyStar Partner
- Large serice area
- Low prices relative to competitors
- Quality of service will depend on your area
Best for Residential Windows
Window Nation
- Award-winning company
- Custom designs
- Manufactures products in-house
- Limited service area
How We Choose the Best Window Installers in Windham
In our hunt to find the most reliable, eco-friendly window installers in Windham, the EcoWatch Reviews team examined many companies before settling on these. Along with energy efficiency, we analyzed window companies all across the state and ranked them using the following methodology:
Service Area
This one is self-explanatory, but we've chosen to highlight window installation companies that serve a wide variety of states and cities so you can find the best window installation company near you.
Work Quality
We're willing to bet that you're looking for a company to do a great job installing windows. We've vetted each company on this list to ensure its contractors are well-qualified and that the company has gotten plenty of positive customer feedback to vouch for its service.
Customer Reviews
We analyzed trends in recent online reviews to determine the companies with the most customer satisfaction, weighted by sample size. Customer satisfaction might be the factor we place the most value on, as it indicates the quality of services across most other categories, including quality of parts, warranty, cost, professionalism, quality of installation and more.
Cost
Cheaper windows certainly don't mean better windows, but we know many of our readers try to keep costs low when possible. When analyzing the prices of providers, we awarded higher scores to companies with reasonable prices and accessible financing rather than "cheaper" services.
Warranty
Protecting your investment in new windows is important to many homeowners. For that reason, window installation companies with lengthy warranties for products, parts and installation (aka workmanship) rank higher with EcoWatch.
Years of Experience
Because of Windham's climate, homeowners need to be wary of low efficiency, water damage and rot. We factored in local experience to reflect the ability of Windham window companies to prepare homes for the climate. If a company has less than 10 years of experience, it loses points in this category.
Windham, CT Window Replacement FAQs
How much does window installation cost?
The average cost to install a window ranges between $450 and $650. There are a variety of factors that influence the cost, which include local labor costs, styles and sizes of windows, the number of windows, how energy-efficient the windows are, your property's location and the materials used in designing the windows.
Which type of window should I get?
Generally, double-pane windows will be more efficient than single-pane windows and windows that do not open will be more efficient than windows that do. To be sure you'll have the most energy-efficient windows, look for models with the blue Energy Star certification attached to them — this means they're certified energy-efficient by the U.S. Department of Energy.
When should I use a window installation company?
Unless you're handy and have all the tools you need to replace your own windows, we recommend hiring a professional. The window installation process is complex and can take anywhere from four to six hours for a single window. Although it's tempting to try to do it yourself to save money, hiring a company is a faster, more efficient and much safer option.
How long does it generally take to install windows?
Each window takes around 30 minutes to install based on the kind of window. However, the window installation can take two days or more if you need to have a lot of windows installed.
When is the best time of year to replace windows?
Replacement windows can be installed any time of the year, but warmer weather is typically better. No matter when you install them, the contractors will take steps to ensure that too much hot or cold air doesn't get into your home, so the temperature outside isn't necessarily a big factor. What's most important is that the weather should be dry.